Toyota Supra Engine Question

[pwpanas]

Originally Posted by 2jpowered

...In actuality, both u.s. and jdm supra tt dyno (dyno dynamics) around 270-280rwhp when in good condition in factory form...

Unfortunately, (fyi) that point is not accurate. Fwiw, my own personal (US-Spec) Supra (6spd) dyno'd at 305rwhp in 100% bone-stock form, with about 50K on the odo. I've seen others post even higher dyno results from very low mileage, bone-stock US-spec Supras...the highest I recall seeing is about 315rwhp or so.

Originally Posted by 2jpowered

...The factory U.S. spec turbochargers are only capable of around 490rwhp(give or take a few) as the turbos are out of its efficiency range past that...

Agreed. Please see this link:
http://www.moreboost.org/turbo_detai...stock%20turbos

[2jpowered]

Originally Posted by pwpanas

Unfortunately, (fyi) that point is not accurate. Fwiw, my own personal (US-Spec) Supra (6spd) dyno'd at 305rwhp in 100% bone-stock form, with about 50K on the odo. I've seen others post even higher dyno results from very low mileage, bone-stock US-spec Supras...the highest I recall seeing is about 315rwhp or so.

Yeah you are right Ive seen a few 300+rwhp baselines, the cars we dynoed (276.4rwhp,282.7rwhp as well as many others)were on a dyno dynamics and in 4th gear(the 276rwhp had 120k miles, new 15w40 mobile oil, diff. oil, coolant and plugs, the 282rwhp had an old k&n drop in filter,165k miles, new fuel filter). I should of said "the average okay-conditioned un-modified tt should make anywhere near + or - xxxrwhp at 11psi" The "industry standard" uses the dyno jet that read sometimes 15% higher. We do testing on both and have seen inflated numbers. And also elevation, gas, outside/inside temp, fans, and other correction factors play a big part of the numbers game.